Prescriptions for hormone treatments such as HRT have doubled since 2020. No explanation has been offered for this, but the vaccines, introduced at the same time, are known to have a strong effect on women's periods.
A study which surveyed 35,000 women, published in leading journal Science, has found that 42% of around 27,000 respondents who have regular periods bled more heavily than usual following Covid vaccination.
Britain's medicines regulator has received reports from 13,000 women who have suffered period problems after taking a Covid vaccine, an increase of 9,000 from late June.
Britain's medicines regulator has received reports from almost 4,000 women who have suffered period problems after taking a Covid vaccine, and a Reproductive Immunologist says plenty more cases are not being reported.
